13274447231 has 4 divisors (see below), whose sum is σ = 13294530264. Its totient is φ = 13254364200.

The previous prime is 13274447213. The next prime is 13274447243.

13274447231 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13274447231 is a prime.

It is a super-2 number, since 2×13274447231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13274447201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10040525 + ... + 10041846.

It is an arithmetic number, because the mean of its divisors is an integer number (3323632566).

Almost surely, 2^13274447231 is an apocalyptic number.

13274447231 is a deficient number, since it is larger than the sum of its proper divisors (20083033).

13274447231 is an equidigital number, since it uses as much as digits as its factorization.

13274447231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20083032.

The product of its digits is 112896, while the sum is 38.

The spelling of 13274447231 in words is "thirteen billion, two hundred seventy-four million, four hundred forty-seven thousand, two hundred thirty-one".